Smart plugs

I wanted to order a "smart plug", i.e. an intermediate plug whose consumption I can read on my mobile, but as expected, you have to register with the manufacturer with an account for every device I have looked at so far in order to use the respective app. An absolute no-go. Is there even such a device that works without data theft? (Why not a non-smart plug with an integrated display? Because 1. the sockets are rarely accessible without enormous effort. 2. because usually only the current consumption can be read. I already have one. Never used it).

Sali zeme At the moment I have the steffen wireless switches to switch a few devices (mainly loudspeakers that make noise when the pc is off) that are slowly breaking down and are no longer available in the shop. i could just replace them with the new and hopefully better ones, but as i now have my homeassistant setup with hue and nanoleaf lights, i thought it would be a good idea to buy plugs that are integrated with them. The path of least resistance would be to just buy the hue plugs as I already have the hue bridge. But I think the ability to measure power consumption would also be good. tldr; my goal: prio 1: switch prio 2: measure and at the same time: - swiss plug - home assistant integration for switching (and possibly measuring) as little hacky as possible - as little fiddling and phone home with proprietary apps, clouds and accounts as possible is that possible? e.g. when i google the brands here in the shop i come across home assistant integrations for the brand - but then not for the plugs - or for the plugs but not with measurement - or homeassistant possible but through smart things, tuya etc. cloud integration zigbee sounds like a way to go, with the hue bridge I actually also have a zigbee gateway, but I don't understand if there are limits to the functions compared to a zigbee gateway like the one from Nabu Casa in the discussion about the hombli plugs i found the recommendation: "Eve Energy CH with Matter over Thread", should I just get a thread border router like the one from espressif? if i need an app just to pair, that's ok, but not permanently on the internet just to control my stuff in the house

Is there a pure measuring "counter"? I would like the device to simply record consumption, e.g. hourly, so that I can somehow download the data later. That way I can find out when and how much electricity is consumed and also compare it with the electricity bill to see how much it amounts to. I could do all the data preparation myself. Ah, and as I would like to have a lot of devices, favourable unit prices would of course be an advantage. As far as I can see, most socket meters are designed to display the current consumption, they may calculate the tariffs immediately and/or you can switch them on/off remotely. I don't want to have to read the values all the time.